MESON Chess Problem Database
Problem Display
PID: 209832 (3N2b1/3Q3r/K1N2b2/B5Pq/k1p5/p1R3nR/P7/3r4 w - - 0 1)
Kohring, Rolf
Badische Neueste Nachrichten, 1991
#2
9 + 9
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qf7
- 2.Qxd1#
- 1...Qe8
- 2.Qxd1#
- 1...Qxh3
- 2.Qxd1#
- 1...Qh4
- 2.Qxd1#
- 1...Qxg5
- 2.Qxd1#
- 1...Qh6
- 2.Qxd1#
- 1...Ra1
- 2.Se7#
- 1...Rc1
- 2.Se7#
- 1...Re1
- 2.Se7#
- 1...Rf1
- 2.Se7#
- 1...Rg1
- 2.Se7#
- 1...Rh1
- 2.Se7#
- 1...Rd5
- 2.Rxc4#
- 1...Rh6
- 2.Sd4#
- 1...Rf7
- 2.Rxc4#
- 1...Rh8
- 2.Sd4#
- 1...Bd4
- 2.Se7#
- 1...Be7
- 2.Sd4#
- 1...Bg7
- 2.Sd4#
- 1...Bf7
- 2.Sd4#
- 1...Sf1
- 2.Rxa3#
- 1...Sh1
- 2.Rxa3#
- 1...Se2
- 2.Rxa3#
- 2.Qxd1#
- 1...Se4
- 2.Rxa3#
- 1...Sf5
- 2.Rxa3#
- 1...Qf7
- Tries
- 1.Se6?
- threat
- 2.Sc5#
- 2.Rxc4#
- 1...Qxg5
- 2.Rxc4#
- 2.Qxd1#
- 1...Bxc3
- 2.Sc5#
- 1...Qe2
- 2.Sc5#
- 1...Qg4
- 2.Sc5#
- 1...Qh4
- 2.Sc5#
- 2.Qxd1#
- 1...Rb1
- 2.Sc5#
- 1...Rc1
- 2.Se7#
- 2.Sc5#
- 1...Rd4
- 2.Sc5#
- 1...Rd5
- 2.Rxc4#
- 1...Bd4
- 2.Se7#
- 2.Rxc4#
- 1...Be7
- 2.Scd4#
- 1...Se4
- 2.Rxa3#
- 2.Rxc4#
- 1...Bxe6!
- threat
- 1.Sf7?
- threat
- 2.Sd4#
- 2.Rxc4#
- 1...Qxf7
- 2.Qxd1#
- 1...Qxh3
- 2.Rxc4#
- 2.Qxd1#
- 1...Qxg5
- 2.Rxc4#
- 2.Qxd1#
- 1...Rxd7
- 2.Rxc4#
- 1...Rxf7
- 2.Rxc4#
- 1...Bxc3
- 2.Sd4#
- 1...Bxf7
- 2.Sd4#
- 1...Qe2
- 2.Sd4#
- 1...Qf3
- 2.Rxc4#
- 1...Qh4
- 2.Sd4#
- 2.Qxd1#
- 1...Rb1
- 2.Sb4#
- 1...Rc1
- 2.Sb4#
- 2.Sd4#
- 2.Sce5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Scd8#
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.Rxc4#
- 1...Rd6
- 2.Rxc4#
- 1...Bd4
- 2.Sb4#
- 2.Sxd4#
- 2.Sce5#
- 2.Sa7#
- 2.Se7#
- 2.Sb8#
- 2.Scd8#
- 2.Rxc4#
- 1...Be7
- 2.Sd4#
- 1...Qg4!
- threat
- 1.Se6?
- Keys
- 1.Sb7!
- threat
- 2.Sc5#
- 1...Qxg5
- 2.Qxd1#
- 1...Rd5
- 2.Rxc4#
- 1...Bd4
- 2.Se7#
- 1...Be7
- 2.Sd4#
- 1...Se4
- 2.Rxa3#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 19
- Sets
- Q(f);N_GUARD::QAB(H),XR(a)
- Q(f);N_GUARD,SBLOCK,XR(C)::QAB(H),XR(a)
- Q(f);N_GUARD,XP(E)::QAB(H),XR(a)
- R(a);N_GUARD::QAB(H)+S(G)
- R(a);S_CUTB(i)::R(B),XP(e)
- R(h);N_GUARD::QAB(H)+S(G)
- R(h);S_CUTB(i)::R(B),XP(e)
- B(g);S_CUTR(a)::QAB(H)+S(G)
- B(g);S_CUTR(h)::QAB(H)+S(G)
- B(i);S_CUTR(h)::QAB(H)+S(G)
- S(c);::R1(B),XP(b)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(g);XR(B)::S(I)
- Q(f);::S(I)
- R(a);::S(I)
- R(a);::R(B),XP(e)
- B(g);S_CUTR(h)::QAB(H)+S(G)
- Refutation
- B(i);XS(I)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XS(I)::QAB(H),XR(a)
- R(a);XQ(H)::R(B),XP(e)
- R(h);XS(I)::R(B),XP(e)
- B(g);XR(B)::QAB(H)+S(G)
- B(i);XS(I)::QAB(H)+S(G)
- Q(f);::QAB(H)+S(G)
- Q(f);::R(B),XP(e)
- R(a);N_GUARD::QAB(H)+S(G)
- R(a);::QAB(H)+S(G),XR(a)
- R(a);::R(B),XP(e)
- R(a);P_PINS(G)::R(B),XP(e)
- B(g);::QAB(H)+S(G)
- Refutation
- Q(f);
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- Q(f);N_GUARD,XP(E)::QAB(H),XR(a)
- R(a);S_CUTB(i)::R(B),XP(e)
- B(g);S_CUTR(a)::QAB(H)+S(G)
- B(g);S_CUTR(h)::QAB(H)+S(G)
- S(c);::R1(B),XP(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).